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Sandberg offer a comprehensive site Ground Penetrating Radar service, including data processing, analysis, interpretation and reporting.

What is Ground Penetrating Radar?

Ground Penetrating Radar (also known as Ground Radar, Ground Probing Radar, Georadar, GPR and Surface Penetrating Radar) provides a non-intrusive and non-destructive method of surveying the Subsurface, including Concrete Imaging. It is a highly cost effective non-intrusive (ND) technique, offering a rapid means of obtaining subsurface information from a variety of materials used in the construction industry including concrete, brick, masonry, wood, asphalt and soil.

Ground Penetrating Radar is a geophysical technique originally developed for mapping geological features, but it is now increasingly used for Civil Engineering applications. Sandberg specialise in the use of GPR in the Construction Industry. Find out more about our Ground Penetrating Radar surveys.

  • Concrete imaging and rebar detection
  • Concrete floor slab surveys
  • Chimney flue location
  • Historical building characterization (incl. embedded steel location)
  • Locating tendon ducts
  • Locating under floor heating pipes
  • Retaining wall surveys
  • Structural investigation surveys
  • Wall and slab thickness measurement
  • Shallow foundation and pile-cap location
  • Railway ballast thickness and evaluation
  • Grave and crypt location
  • Voids in construction and below slabs


Ground Penetrating Radar can determine sub-surface detail, rebar distribution, voids, etc. non-intrusively without damage to the surrounding structure.

Speed and Efficiency

Ground Penetrating Radar scanning is quick and efficient and is suitable for scanning large or small areas. If required, preliminary results are available in real time.

Limit Risk

Ground Penetrating Radar can help limit exposure and control risk by locating potential problems and confirming compliance with specification.

Featured GPR Surveys

Ground Penetrating Radar is a flexible NDT survey technique suitable for many different applications.

Why Choose Us

In addition to Ground Penetrating Radar surveys, Sandberg provide a one stop shop for construction industry material services throughout the world, including:

  • Consultancy,
  • Quality management,
  • Materials testing,
  • Inspection and investigation.
Innovation tailored to our client’s needs

Our clients include consulting engineers, architects, surveyors, government and public authorities, civil engineering and building contractors, property developers and managers, lawyers and manufacturers and suppliers of building materials. We don’t just aim to meet our client’s expectations, we endeavour to exceed them!

An expert team

Ground Penetrating Radar investigations are carried out by our team of specialised and experienced GPR surveyors, whose professional ability and integrity is evident in every aspect of their work.

More about us

Ground Penetrating Radar inspector